Iyo miviri-nhanho compressor firiji kutenderera inowanzo shandisa macompressor maviri, anoti yakaderera-kumanikidza compressor uye yakakwirira-kumanikidza compressor.
1.1 Iyo nzira yefiriji gasi inowedzera kubva mukupupuma kumanikidza kune condensing pressure yakakamurwa kuita 2 nhanho.
Nhanho yekutanga: Yakatsikirirwa kune yepakati kudzvanywa neiyo yakaderera-kumanikidza nhanho compressor kutanga:
Danho rechipiri: gasi riri pasi pekumanikidzwa kwepakati rinowedzera kumanikidzwa kune condensation pressure ne-high-pressure compressor mushure mekutonhora kwepakati, uye kutenderera kunopedzisa kunopedzisa firiji.
Paunenge uchigadzira tembiricha yakaderera, iyo intercooler yematanho maviri ekumanikidza firiji kutenderera inoderedza inlet tembiricha yefiriji mune yakakwirira-kumanikidza nhanho compressor, uye zvakare inoderedza kupisa kwekuyerera kweiyo compressor imwechete.
Sezvo maviri-matanho ekumanikidza firiji kutenderera achikamura iyo yese firiji maitiro kuita nhanho mbiri, iyo yekumanikidza reshiyo yechikamu chimwe nechimwe ichave yakaderera zvakanyanya kupfuura iyo imwe-nhanho yekumanikidza, kuderedza zvinodiwa zvesimba remidziyo uye nekuvandudza zvakanyanya kushanda kweiyo firiji kutenderera. Iyo miviri-nhanho yekumanikidza firiji kutenderera yakakamurwa kuita yepakati yakazara kutonhora kutenderera uye yepakati isina kukwana kutonhora kutenderera zvinoenderana neakasiyana epakati kutonhora nzira; kana yakavakirwa panzira yekukwenya, inogona kukamurwa kuita danho rekutanga throttling cycle uye yechipiri-nhanho throttling cycle.
1.2 Maviri-nhanho compression refrigerant marudzi
Zvizhinji zvematanho maviri ekumanikidza firiji masisitimu anosarudza epakati uye yakaderera tembiricha refrigerants. Tsvagiridzo yekuyedza inoratidza kuti R448A neR455a yakanaka inotsiva R404A maererano nekushanda kwesimba. Kana ichienzaniswa nemamwe mahydrofluorocarbons, CO2, semvura inoshanda zvakatipoteredza, inogona kutsiva mafiriji ehydrofluorocarbon uye ine hunhu hwakanaka hwezvakatipoteredza.
Asi kutsiva R134a neCO2 kunokanganisa mashandiro ehurongwa, kunyanya patembiricha yepamusoro, kudzvanywa kweiyo CO2 system yakanyanya uye inoda kurapwa kwakakosha kwezvikamu zvakakosha, kunyanya compressor.
1.3 Optimization tsvakiridzo pane maviri-nhanho compression firiji
Parizvino, iyo optimization yekutsvagisa mhedzisiro yembiri-nhanho yekumanikidza firiji kutenderera sisitimu yakanyanya seiyi:
(1) Paunenge uchiwedzera huwandu hwemitsara yechubhu muintercooler, kuderedza huwandu hwemitsara yechubhu mumhepo inotonhorera kunogona kuwedzera nzvimbo yekutsinhana kweiyo intercooler ichideredza kuyerera kwemhepo kunokonzerwa nehuwandu hwemitsara yechubhu mumhepo inotonhorera. Kudzokera kunopinda kwayo, kuburikidza nekuvandudzwa kwepamusoro, kutonhora kwemukati we intercooler kunogona kuderedzwa ne2 ° C, uye panguva imwechete, kutonhora kwemhepo inotonhorera kunogona kuvimbiswa.
(2) Chengetedza kuwanda kweiyo yakaderera-pressure compressor nguva dzose, uye shandura iyo frequency ye-high-pressure compressor, nekudaro uchinje chiyero cheiyo gasi rekutakura vhoriyamu ye-high-pressure compressor. Kana tembiricha ye evaporation ichigara pa -20 ° C, iyo yakanyanya COP ndeye 3.374, uye iyo yakawanda Iyo gasi redhiyo yekutakura inoenderana neCOP ndeye 1.819.
(3) Nekuenzanisa akati wandei akajairwa CO2 nhanho mbiri yekumanikidza firiji masisitimu, zvinogumiswa kuti tembiricha yekubuda kwegasi inotonhorera uye kushanda kweiyo yakaderera-kudzvanya nhanho compressor ine pesvedzero huru pakutenderera pakumanikidzwa kwakapihwa, saka kana uchida Kuvandudza mashandiro ehurongwa, zvinodikanwa kudzikisa tembiricha yekubuda kwegasi inotonhorera uye sarudza yakaderera-inodzvinyirira nhanho yekushandisa.
Nguva yekutumira: Mar-22-2023